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b405ff34d3
There is an existing PMT mapping between PCR_%s and an mpegtsmux sink pad name, where %s equals the program number that the PCR corresponds to. We re-purpose this functionality to also support a mapping between PCR_%s and an arbitrary PID. If this mapping is set, then the header PCR PID is set to this value, and PCR is attached to the stream with this PID. Note: the current implementation also attaches PCR to the video stream, so this may be inefficient. Co-authored-by: Jordan Yelloz <jordan.yelloz@collabora.com> Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5726>
268 lines
9.1 KiB
C
268 lines
9.1 KiB
C
/*
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* Copyright 2006 BBC and Fluendo S.A.
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*
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* This library is licensed under 3 different licenses and you
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* can choose to use it under the terms of any one of them. The
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* three licenses are the MPL 1.1, the LGPL, and the MIT license.
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*
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* MPL:
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*
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* The contents of this file are subject to the Mozilla Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/.
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*
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* Software distributed under the License is distributed on an "AS IS"
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* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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* License for the specific language governing rights and limitations
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* under the License.
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*
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* LGPL:
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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* MIT:
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*
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* Unless otherwise indicated, Source Code is licensed under MIT license.
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* See further explanation attached in License Statement (distributed in the file
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* LICENSE).
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is furnished to do
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* so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* SPDX-License-Identifier: MPL-1.1 OR MIT OR LGPL-2.0-or-later
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*/
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#ifndef __TSMUXSTREAM_H__
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#define __TSMUXSTREAM_H__
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#include <glib.h>
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#include <gst/mpegts/mpegts.h>
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#include "tsmuxcommon.h"
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G_BEGIN_DECLS
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typedef enum TsMuxStreamType TsMuxStreamType;
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typedef enum TsMuxStreamState TsMuxStreamState;
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typedef struct TsMuxStreamBuffer TsMuxStreamBuffer;
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typedef void (*TsMuxStreamBufferReleaseFunc) (guint8 *data, void *user_data);
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typedef void (*TsMuxStreamGetESDescriptorsFunc) (TsMuxStream *stream, GstMpegtsPMTStream *pmt_stream, gpointer user_data);
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/* Stream type assignments
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*
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* 0x00 ITU-T | ISO/IEC Reserved
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* 0x01 ISO/IEC 11172 Video
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* 0x02 ITU-T Rec. H.262 | ISO/IEC 13818-2 Video or
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* ISO/IEC 11172-2 constrained parameter video
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* stream
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* 0x03 ISO/IEC 11172 Audio
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* 0x04 ISO/IEC 13818-3 Audio
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* 0x05 ITU-T Rec. H.222.0 | ISO/IEC 13818-1
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* private_sections
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* 0x06 ITU-T Rec. H.222.0 | ISO/IEC 13818-1 PES
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* packets containing private data
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* 0x07 ISO/IEC 13522 MHEG
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* 0x08 ITU-T Rec. H.222.0 | ISO/IEC 13818-1 Annex A
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* DSM CC
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* 0x09 ITU-T Rec. H.222.1
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* 0x0A ISO/IEC 13818-6 type A
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* 0x0B ISO/IEC 13818-6 type B
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* 0x0C ISO/IEC 13818-6 type C
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* 0x0D ISO/IEC 13818-6 type D
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* 0x0E ISO/IEC 13818-1 auxiliary
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* 0x0F-0x7F ITU-T Rec. H.222.0 | ISO/IEC 13818-1 Reserved
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* 0x80-0xFF User Private
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*/
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enum TsMuxStreamType {
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TSMUX_ST_RESERVED = 0x00,
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TSMUX_ST_VIDEO_MPEG1 = 0x01,
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TSMUX_ST_VIDEO_MPEG2 = 0x02,
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TSMUX_ST_AUDIO_MPEG1 = 0x03,
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TSMUX_ST_AUDIO_MPEG2 = 0x04,
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TSMUX_ST_PRIVATE_SECTIONS = 0x05,
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TSMUX_ST_PRIVATE_DATA = 0x06,
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TSMUX_ST_MHEG = 0x07,
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TSMUX_ST_DSMCC = 0x08,
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TSMUX_ST_H222_1 = 0x09,
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/* later extensions */
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TSMUX_ST_AUDIO_AAC = 0x0f,
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TSMUX_ST_VIDEO_MPEG4 = 0x10,
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TSMUX_ST_VIDEO_H264 = 0x1b,
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TSMUX_ST_VIDEO_HEVC = 0x24,
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TSMUX_ST_VIDEO_JP2K = 0x21,
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/* private stream types */
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TSMUX_ST_PS_AUDIO_AC3 = 0x81,
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TSMUX_ST_PS_AUDIO_DTS = 0x8a,
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TSMUX_ST_PS_AUDIO_LPCM = 0x8b,
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TSMUX_ST_PS_DVB_SUBPICTURE = 0x8c,
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TSMUX_ST_PS_TELETEXT = 0x8d,
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TSMUX_ST_PS_KLV = 0x8e, /* only used internally */
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TSMUX_ST_PS_OPUS = 0x8f, /* only used internally */
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TSMUX_ST_PS_DVD_SUBPICTURE = 0xff,
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/* Non-standard definitions */
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TSMUX_ST_VIDEO_DIRAC = 0xD1
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};
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enum TsMuxStreamState {
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TSMUX_STREAM_STATE_HEADER,
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TSMUX_STREAM_STATE_PACKET
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};
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/* TsMuxStream receives elementary streams for parsing */
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struct TsMuxStream {
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TsMuxStreamState state;
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TsMuxPacketInfo pi;
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guint stream_type;
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/* stream_id (13818-1) */
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guint8 id;
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/* extended stream id (13818-1 Amdt 2) */
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guint8 id_extended;
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struct TsMuxProgram *program;
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/* requested index in the PMT */
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gint pmt_index;
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gboolean is_video_stream;
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/* data available for writing out
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* and total sum of sizes */
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GList *buffers;
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guint32 bytes_avail;
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/* current data buffer being consumed
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* and amount already consumed */
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TsMuxStreamBuffer *cur_buffer;
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guint32 cur_buffer_consumed;
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/* helper to release collected buffers */
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TsMuxStreamBufferReleaseFunc buffer_release;
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/* Override or extend the default Elementary Stream descriptors */
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TsMuxStreamGetESDescriptorsFunc get_es_descrs;
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void *get_es_descrs_data;
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/* optional fixed PES size for stream type */
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guint16 pes_payload_size;
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/* current PES payload size being written */
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guint32 cur_pes_payload_size;
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/* ... of which already this much written */
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guint32 pes_bytes_written;
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/* PTS/DTS to write if the flags in the packet info are set */
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/* in MPEG PTS clock time */
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gint64 pts;
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gint64 dts;
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/* last ts written, or maybe next one ... ?! */
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gint64 last_dts;
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gint64 last_pts;
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gint64 first_ts;
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/* count of programs using this as PCR */
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gint pcr_ref;
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/* Next time PCR should be written */
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gint64 next_pcr;
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/* audio parameters for stream
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* (used in stream descriptor) */
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gint audio_sampling;
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gint audio_channels;
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gint audio_bitrate;
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gboolean is_dvb_sub;
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gchar language[4];
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gboolean is_meta;
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gboolean is_audio;
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/* Opus */
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gboolean is_opus;
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guint8 opus_channel_config[1 + 2 + 1 + 1 + 255];
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gsize opus_channel_config_len;
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/* Jpeg2000 */
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gint32 horizontal_size;
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gint32 vertical_size;
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gint32 den;
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gint32 num;
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/* Maximum bitrate box */
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guint32 max_bitrate;
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guint16 profile_and_level;
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gboolean interlace_mode;
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guint8 color_spec;
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};
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/* stream management */
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TsMuxStream * tsmux_stream_new (guint16 pid, guint stream_type, guint stream_number);
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void tsmux_stream_free (TsMuxStream *stream);
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guint16 tsmux_stream_get_pid (TsMuxStream *stream);
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void tsmux_stream_set_buffer_release_func (TsMuxStream *stream,
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TsMuxStreamBufferReleaseFunc func);
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void tsmux_stream_set_get_es_descriptors_func (TsMuxStream *stream,
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TsMuxStreamGetESDescriptorsFunc func,
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void *user_data);
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/* Add a new buffer to the pool of available bytes. If pts or dts are not -1, they
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* indicate the PTS or DTS of the first access unit within this packet */
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void tsmux_stream_add_data (TsMuxStream *stream, guint8 *data, guint len,
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void *user_data, gint64 pts, gint64 dts,
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gboolean random_access);
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void tsmux_stream_pcr_ref (TsMuxStream *stream);
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void tsmux_stream_pcr_unref (TsMuxStream *stream);
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gboolean tsmux_stream_is_pcr (TsMuxStream *stream);
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gboolean tsmux_stream_at_pes_start (TsMuxStream *stream);
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void tsmux_stream_get_es_descrs (TsMuxStream *stream, GstMpegtsPMTStream *pmt_stream);
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void tsmux_stream_default_get_es_descrs (TsMuxStream * stream, GstMpegtsPMTStream * pmt_stream);
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gint tsmux_stream_bytes_in_buffer (TsMuxStream *stream);
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gint tsmux_stream_bytes_avail (TsMuxStream *stream);
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gboolean tsmux_stream_initialize_pes_packet (TsMuxStream *stream);
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gboolean tsmux_stream_get_data (TsMuxStream *stream, guint8 *buf, guint len);
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gint64 tsmux_stream_get_pts (TsMuxStream *stream);
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gint64 tsmux_stream_get_dts (TsMuxStream *stream);
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G_END_DECLS
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#endif
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